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Viktor [21]
3 years ago
10

A(n) ________________ takes place when an unauthorized person gains access to a digital device by using an internet connection a

nd exploiting vulnerabilities in hardware or software
Computers and Technology
1 answer:
nordsb [41]3 years ago
4 0
It's called an attack
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What is most likely to happen to the purchasing power of money over time?
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A

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Using productivity software ensures that the end product will look professional. Please select the best answer from the choices
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False

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Explain use of information and communication technology in our daily life.
lions [1.4K]

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It can improve the quality of human life because it can be used as a learning and education media, the mass communication media in promoting and campaigning practical and important issues, such as the health and social area. It provides wider knowledge and can help in gaining and accessing information.

<em>That</em><em>'</em><em>s</em><em> </em><em>my</em><em> </em><em>answer</em>

4 0
2 years ago
How many different messages can be transmitted in n microseconds using three different signals if one signal requires 1 microsec
SIZIF [17.4K]

Answer:

a_{n} = 2/3 . 2^n + 1/3 . (-1)^n

Explanation:

Let a_{n} represents number of the message that can transmitted in <em>n </em>microsecond using three of different signals.

One signal requires one microsecond for transmittal: a_{n}-1

Another signal requires two microseconds for transmittal: a_{n}-2

The last signal requires two microseconds for transmittal: a_{n}-2

a_{n}= a_{n-1} + a_{n-2} + a_{n-2} = a_{n-1} + 2a_{n-2}, n ≥  2

In 0 microseconds. exactly 1 message can be sent: the empty message.

a_{0}= 1

In 1 microsecond. exactly 1 message can be sent (using the one signal of one  microseconds:

a_{0}= 1

2- Roots Characteristic equation

Let a_{n} = r^2, a_{n-1}=r and a_{n-2}= 1

r^2 = r+2

r^2 - r - 2 =0                 Subtract r+6 from each side

(r - 2)(n+1)=0                  Factorize

r - 2 = 0 or r +1 = 0       Zero product property

r = 2 or r = -1                 Solve each equation

Solution recurrence relation

The solution of the recurrence relation is then of the form a_{1} = a_{1 r^n 1} + a_{2 r^n 2} with r_{1} and r_{2} the roots of the characteristic equation.

a_{n} =a_{1} . 2^n + a_{2}.(-1)"

Initial conditions :

1 = a_{0} = a_{1} + a_{2}

1 = a_{1} = 2a_{1} - a_{2}

Add the previous two equations

2 = 3a_{1}

2/3 = a_{1}

Determine a_{2} from 1 = a_{1} + a_{2} and a_{1} = 2/3

a_{2} = 1 - a_{1} = 1 - 2 / 3 = 1/3

Thus, the solution of recursion relation is a_{n} = 2/3 . 2^n + 1/3 . (-1)^n

6 0
3 years ago
An important difference between a universal and a split-phase motor is that the split-phase motor has A. two brushes attached to
mafiozo [28]
The correct answer is C. The split phase motor has two windings on the stator.

A split phase AC induction motor runs on a single phase and splits the phase into two windings, a run winding, and a start winding, on the stator. The start winding axes is 90 degrees electrically to the run winding. This helps to produce a rotating magnetic field at startup and gets the motor spinning. This secondary 'start' winding on the stator is a key feature of split phase motors.
7 0
3 years ago
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